fix IT; add catch for FileNotFoundException for downloadDatasetTo

5 jobs for fix-650/galaxy-html-output-download in 50 minutes and 56 seconds (queued for 2 seconds)
latest
Status Job ID Name Coverage
  Test
passed #34448
docker
build-docs_job

00:01:55

passed #34447
docker
galaxy_job

00:42:20

passed #34446
docker
rest_job

00:08:16

passed #34444
docker
service_job

00:08:32

passed #34445
docker
ui_job

00:21:25